April Company
type: MusicGroup
popularity: 9
followers: 1225
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02c162d85119c56b86dba3f8b38e50700e1a0a1a0cfa0e1b3ea8b9028a033694
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84c95fb3-c626-4187-b72b-e070fb03c68e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/84c95fb3-c626-4187-b72b-e070fb03c68e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/84c95fb3-c626-4187-b72b-e070fb03c68e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02c162d85119c56b86dba3f8b38e50700e1a0a1a0cfa0e1b3ea8b9028a033694","name":"April Company","registered_at":"2026-06-17T11:46:12Z","symbol":"NIM1385502","token_address":"0x435403881eb5ad72594df6bbb12ffd93f6fbd169","type":"artist","uuid":"84c95fb3-c626-4187-b72b-e070fb03c68e"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c162d85119c56b86dba3f8b38e50700e1a0a1a0cfa0e1b3ea8b9028a033694. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84c95fb3-c626-4187-b72b-e070fb03c68e.json and https://artists.proofprofile.net/proofs/artist/84c95fb3-c626-4187-b72b-e070fb03c68e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x02c162d85119c56b86dba3f8b38e50700e1a0a1a0cfa0e1b3ea8b9028a033694","name":"April Company","registered_at":"2026-06-17T11:46:12Z","symbol":"NIM1385502","token_address":"0x435403881eb5ad72594df6bbb12ffd93f6fbd169","type":"artist","uuid":"84c95fb3-c626-4187-b72b-e070fb03c68e"}
album: Yesterday
  type: MusicAlbum
  date published: 2019-08-21
album: Weather Boy
  type: MusicAlbum
  date published: 2019-12-01
album: Homesick
  type: MusicAlbum
  date published: 2020-01-20
album: SD CARD
  type: MusicAlbum
  date published: 2020-02-29
album: April
  type: MusicAlbum
  date published: 2021-01-10
  track: April
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206000
    explicit: false
    by artist: April Company
    in album: April
      type: MusicAlbum
      date published: 2021-01-10
    isrc code: USCGH2105430
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T17:00:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2bc1ada4066089122bc5bf9fe1215bf30bf2aa568d7bc07a62494ae72ca89971
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2105430
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc1ada4066089122bc5bf9fe1215bf30bf2aa568d7bc07a62494ae72ca89971. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH2105430.
      date published: 2026-07-05T19:27:56Z
    audio: April
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.98
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.694
      additional property: Energy
        type: PropertyValue
        value: 0.73
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.01
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.133
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.865
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.454
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Places
  type: MusicAlbum
  date published: 2021-04-25
album: Infinite Cup Glitch
  type: MusicAlbum
  date published: 2022-03-12